ERPs and contextual semantic discrimination: Degrees of congruence in wakefulness and sleep

Ibáñez, Agustín; López, Vladimir; Cornejo, Carlos

doi:10.1016/j.bandl.2006.05.005

Cited by 85 publications

(71 citation statements)

References 77 publications

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“…Right after stimulus onset, power increased within the slow-wave and spindle ranges in accordance with the fact that sleep rhythms can be evoked by external stimulations (Halász, 2015). These increases were maximal over frontal electrodes and could correspond to a protective mechanisms ensuring that sleep is preserved (Halász et al, 2014). Likewise, the suppressive N550 (Fig.…”

Section: Could Dreams Gate Sensory Processing In Rem Sleep?mentioning

confidence: 66%

Neural Markers of Responsiveness to the Environment in Human Sleep

et al. 2016

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Sleep is characterized by a loss of behavioral responsiveness. However, recent research has shown that the sleeping brain is not completely disconnected from its environment. How neural activity constrains the ability to process sensory information while asleep is yet unclear. Here, we instructed human volunteers to classify words with lateralized hand responses while falling asleep. Using an electroencephalographic (EEG) marker of motor preparation, we show how responsiveness is modulated across sleep. These modulations are tracked using classic event-related potential analyses complemented by Lempel-Ziv complexity (LZc), a measure shown to track arousal in sleep and anesthesia. Neural activity related to the semantic content of stimuli was conserved in light non-rapid eye movement (NREM) sleep. However, these processes were suppressed in deep NREM sleep and, importantly, also in REM sleep, despite the recovery of wake-like neural activity in the latter. In NREM sleep, sensory activations were counterbalanced by evoked down states, which, when present, blocked further processing of external information. In addition, responsiveness markers correlated positively with baseline complexity, which could be related to modulation in sleep depth. In REM sleep, however, this relationship was reversed. We therefore propose that, in REM sleep, endogenously generated processes compete with the processing of external input. Sleep can thus be seen as a self-regulated process in which external information can be processed in lighter stages but suppressed in deeper stages. Last, our results suggest drastically different gating mechanisms in NREM and REM sleep.

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Section: Could Dreams Gate Sensory Processing In Rem Sleep?mentioning

confidence: 66%

Neural Markers of Responsiveness to the Environment in Human Sleep

et al. 2016

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“…The Embodied cognition approach (Anderson 2003;Dourish 2001;Johnson 1987;Lakoff and Johnson 1980;Thompson and Varela 2001;Varela et al 1991) holds that the mind is embodied and placed in a specific ecological context where cognition on a biological, psychological and cultural level is constituted by means of sensory-motor processes in the body (Cornejo et al 2007b, c;Ibáñez et al 2006). The extended mind (Clark and Chalmers 1998;Li 2003, among others) is concerned with the role of the environment in the genesis of the cognitive processes, emphasizing this not only as part of action, but also of thought.…”

Section: The Emergence Of Post-cognitivismmentioning

confidence: 98%

Moving Beyond Computational Cognitivism: Understanding Intentionality, Intersubjectivity and Ecology of Mind

Ibáñez

Cosmelli

2008

Integr. psych. behav.

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The emergence of the Cognitive Sciences, in the middle of the 20th Century, was initially based on an abstract model of the mind: the computer metaphor. The human mind was understood in analogy to the digital computer, as a rule-based, symbol processor. As a consequence, the human being was envisioned as logically-rationally guided, radically disembodied and isolated from culture. Over the last few decades, several disciplines, such as Biology, Mathematics, Philosophy, Psychology and Neuroscience, have begun to address the study of intentionality, intersubjectivity and natural cognition. Searching for a better understanding of these complex issues, a number of approaches have been developed with the promise of capturing the specific qualities of human cognition, radically omitted from a computationalist view of mind. Nevertheless, since these research programs are rather recent, concrete methodological designs and empirical approaches in the form of experimentally testable hypotheses are still scarce. This special issue brings together several perspectives in order to propose alternative research approaches in the topics of Intentionality, Intersubjectivity and Ecology of Mind. We believe it is necessary to discuss and advance towards explicit empirical frames in the form of actual experiments, specific predictions and formal models. The essays presented here constitute an attempt to move in this direction, with the specific aim of reconsidering the study of some forgotten properties of brain and mind.

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“…La embodied cognition, (Anderson 2003; entre otros), por otro lado, afirma que las propiedades de la mente (pensamientos, deseos, imaginación, etc.) están encarnadas en la misma corporalidad, que a su vez se encuentra insertada en un contexto ecológico particular (Cornejo et al 2008;Ibáñez 2008;Ibáñez et al 2006). Dentro de la embodied cognition se sitúa la lingüística cognitiva (Lakoff & Johnson, 1999; entre otros) y la enacción (Thompson & Varela 2001).…”

Section: Una Mirada Histórica a Las Ciencias Cognitivasunclassified

Movilidad en el medio construido: Una mirada desde la cognición espacial

Mora

Isla

Ibáñez³

2011

Polis

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Resumen: Este artículo revisa aportes recientes en el campo de las ciencias cognitivas en relación al diseño del hábitat construido. Primeramente se describen los principales paradigmas teóricos que han animado el debate sobre cognición y conducta humanas durante las últimas décadas, para luego examinar las posibles aplicaciones de estas teorías en la arquitectura y el urbanismo, particularmente en torno a la capacidad de orientarnos y movernos en el medio construido.Palabras clave: dinámica de la cognición, arquitectura, comportamiento Mobility in the built environment. A view from spatial cognitionAbstract: This article reviews recent contributions in the field of cognitive science in relation to the design of the built environment. First we describe the main theoretical paradigms that have animated the debate on human cognition and behavior over the past decades, and then discuss possible applications of these theories in architecture and urbanism, particularly around our ability to orient and move in the built environment.Key words: dynamics of cognition, architecture, behavior Mobilidade no ambiente construído. Uma visão desde a cognição espacialResumo: Este artigo analisa as contribuições recentes no campo da ciência cognitiva em relação ao desenho do ambiente construído. Primeiro vamos descrever os principais paradigmas teóricos que têm animado o debate sobre cognição e comportamento humano nas últimas décadas e, em seguida, discutir as possíveis aplicações dessas teorias em arquitetura e urbanismo, especialmente em torno da Polis, Revista de la Universidad Bolivariana, Volumen 10, Nº30 , 2011, p. 415-429

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ERPs and contextual semantic discrimination: Degrees of congruence in wakefulness and sleep

Cited by 85 publications

References 77 publications

Neural Markers of Responsiveness to the Environment in Human Sleep

Neural Markers of Responsiveness to the Environment in Human Sleep

Moving Beyond Computational Cognitivism: Understanding Intentionality, Intersubjectivity and Ecology of Mind

Movilidad en el medio construido: Una mirada desde la cognición espacial

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